package com.sgq.vue.security.handler;

import com.alibaba.fastjson.JSON;
import com.sgq.vue.result.Result;
import org.springframework.security.authentication.*;
import org.springframework.security.core.AuthenticationException;
import org.springframework.security.web.authentication.AuthenticationFailureHandler;
import org.springframework.stereotype.Component;

import javax.servlet.ServletException;
import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.nio.charset.StandardCharsets;

/**
 * @author sgq
 * @createTime 2023/8/1
 */
@Component
public class MyAuthenticationFailureHandler implements AuthenticationFailureHandler {

    @Override
    public void onAuthenticationFailure(HttpServletRequest request, HttpServletResponse response, AuthenticationException exception) throws IOException, ServletException {
            //设置客户端响应编码格式
            response.setContentType("application/json;charset=UTF-8");
            //获取输出流
            ServletOutputStream outputStream = response.getOutputStream();
            String message = null;//提示信息
            int code = 500;//错误编码
            //判断异常类型
            if(exception instanceof AccountExpiredException){
                message = "账户过期,登录失败！";
            }else if(exception instanceof BadCredentialsException){
                message = "用户名或密码错误,登录失败！";
            }else if(exception instanceof CredentialsExpiredException){
                message = "密码过期,登录失败！";
            }else if(exception instanceof DisabledException){
                message = "账户被禁用,登录失败！";
            }else if(exception instanceof LockedException){
                message = "账户被锁,登录失败！";
            }else if(exception instanceof InternalAuthenticationServiceException){
                message = "账户不存在,登录失败！";
            }else{
                message = "登录失败！";
            }
            //将错误信息转换成JSON
            String result =
                    JSON.toJSONString(Result.error().code(code).message(message));
            outputStream.write(result.getBytes(StandardCharsets.UTF_8));
            outputStream.flush();
            outputStream.close();
        }

    }
